Bleeding from uterine biopsy and polyp removal ten days after procedure. Is this normal? Not sure if starting a normal period now or still bleeding?

Hard to tell. It's possible either way. It might be normal to have some bleeding/spotting after removal of polyp and biopsy of uterus. Likewise, it could be your period. If it's time for your period, then that's what it likely is. Wait another month and see if next month's cycle is normal. Hopefully doctor called you by now to tell you everything's normal!